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The Geevon is a budget wireless weather station that shows indoor and outdoor temperature and humidity on a color LCD, with a remote sensor for the yard or a second room. It runs on USB power and adds a min/max history and an audible alert when readings cross limits you set. It is a basic home monitor, not a forecasting instrument. It sells in the budget tier, well under the price of name-brand stations with barometers and app links.
Lowest price we've seen: $24.99 on Oct 31 at Walmart. Tracked across 1 store since Oct 31.
Buyers rate it about 4 out of 5 and treat it as good value for basic temperature and humidity tracking. Complaints center on sensor range and setup quirks rather than accuracy.